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The Honda R engine is an
The R18 engines have a bore and stroke of , for an overall displacement of .
* Found in:
**2012–2015
iVTEC engages
economy cam profile from 1000 rpm to 3500 rpm, under light engine load. Engine runs on low power cam profile by default.
* Found in:
** 2007–2011
iVTEC engages economy cam profile from 1000 rpm to 3500 rpm, under light engine load. Engine runs on power cam profile by default
Honda Worldwide, Honda Develops New 1.8l i-VTEC Engine
Honda Worldwide, New 1.8l i-VTEC Engine (Video)
Discussion and testing of higher octane fuel with Honda R18 engine
{{Honda automotive engine timeline (2000-present) R 2006 introductions Straight-four engines Gasoline engines by model
inline-four engine
A straight-four engine (also referred to as an inline-four engine) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft.
The majority of automotive four-cylinder engines use a straight-four layout ( ...
launched in 2006 for the Honda Civic
The is a series of automobiles manufactured by Honda since 1972. , the Civic is positioned between the Honda Fit/Honda City, City and Honda Accord in Honda's global passenger car line-up.
The first-generation Civic was introduced in July 1972 ...
(non-Si). It is fuel injected
Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of a fuel injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines.
All co ...
, has an aluminum-alloy cylinder block
In an internal combustion engine, the engine block is the structure that contains the cylinders and other components. The engine block in an early automotive engine consisted of just the cylinder block, to which a separate crankcase was attach ...
and cylinder head
In a piston engine, the cylinder head sits above the cylinders, forming the roof of the combustion chamber. In sidevalve engines the head is a simple plate of metal containing the spark plugs and possibly heat dissipation fins. In more modern ...
, is a SOHC
An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combus ...
16-valve design (four valves per cylinder) and utilizes Honda's i-VTEC
VTEC (described as ''Variable Valve Timing & Lift Electronic Control'', but stands for ''Valve Timing Electronically Controlled'') is a system developed by Honda to improve the volumetric efficiency of a four-stroke internal combustion engine, r ...
system. The R series engine has a compression ratio
The compression ratio is the ratio between the maximum and minimum volume during the compression stage of the power cycle in a piston or Wankel engine.
A fundamental specification for such engines, it can be measured in two different ways. Th ...
of 10.5:1, features a "drive by wire
Drive by wire or DbW in the automotive industry is the technology that uses electronics or electro-mechanical systems in place of mechanical linkages to control driving functions. The concept is similar to fly-by-wire in the aviation industry. D ...
" throttle system which is computer controlled to reduce pumping losses and create a smooth torque curve.
The engine uses many advanced technologies to improve fuel economy and reduce friction. Piston rings are given an ion plating and weight is reduced with plastic and aluminum parts and variable length intake manifold
In internal combustion engines, a variable-length intake manifold (VLIM),variable intake manifold (VIM), or variable intake system (VIS) is an automobile internal combustion engine manifold technology. As the name implies, VLIM/VIM/VIS can vary ...
s that maintain ram air at a wide RPM range. The engine also features piston cooling jets, previously available only on high performance engines, and in the ninth-generation 1.8L Civic (2012-2015) the pistons are treated with molybdenum disulfide
Molybdenum disulfide (or moly) is an inorganic chemistry, inorganic compound composed of molybdenum and sulfur. Its chemical formula is .
The compound is classified as a transition metal dichalcogenide. It is a silvery black solid that occurs as ...
applied in a polka-dot pattern. The automatic transmission model is rated at California Air Resources Board
The California Air Resources Board (CARB or ARB) is an agency of the government of California that aims to reduce air pollution. Established in 1967 when then-governor Ronald Reagan signed the Mulford-Carrell Act, combining the Bureau of Air S ...
(CARB) ULEV-2 (Ultra Low Emissions Vehicle) with fuel economy city, and highway. It also uses the same computer (engine control unit
An engine control unit (ECU), also called an engine control module (ECM), is a device that controls various subsystems of an internal combustion engine. Systems commonly controlled by an ECU include the fuel injection and ignition systems.
The ...
) controlled distributorless coil-on-plug ignition
Ignition may refer to:
Science and technology
* Firelighting, the human act of creating a fire for warmth, cooking and other uses
* Combustion, an exothermic chemical reaction between a fuel and an oxidant
* Fusion ignition, the point at which a ...
as the Honda K-series engines. As of September 2019, the R series engines were only offered outside of Japan.
R16
The R16 engines all have a bore and stroke of , for an overall displacement of .R16A
* Found in: ** 2006 Honda Civic (Singapore, Egypt, Turkey Market – FA1/FD series) ** 2012 Honda Civic (Singapore, Egypt, Turkey Market – FB series) *** SOHC iVTEC (Chain driven cam) *** Compression: 10.5:1 *** Power: at 6,500 rpm *** Torque: at 4,300 rpm *** Transmission: 5-speed *** Redline: 6800 rpmR16B
* Found in: ** 2016 Honda Civic (Mauritius, Singapore, Egypt, Turkey, Cyprus, South Africa, Ukraine and Brunei – FC series) *** SOHC iVTEC (Chain driven cam) *** Compression: 10.7:1 *** Power: at 6,500 rpm *** Torque: at 4,300 rpm *** Transmission: CVT-7 *** Redline: 6700 rpmR18
The R18 engines have a bore and stroke of , for an overall displacement of .
R18A1
* Found in: ** 2006–2011 Honda Civic (South Africa/Thailand/Malaysia/Indonesia/Philippines/Taiwan/Japan/Indian-market FD1, Brazil, American/Canadian-market FA1 & FG1) ** 2007–2009Honda FR-V
The Honda FR-V, marketed as the Honda Edix in Japan, is a six-passenger car that was manufactured by Honda from 2004 to 2009 (with marketing ending in 2011 in some regions), over a single generation. A five-door compact multi-purpose vehicle ( ...
(European-market BE1)
** 2008–2015 Honda City
The is a sedan car which has been produced by the Japanese manufacturer Honda since 1981.
The City was originally a 3-door hatchback/2-door convertible for the Japanese, European and Australasian markets. The 3-door City was retired in 1994 a ...
** 2007–2014 Honda Stream
The Honda Stream () is a car manufactured by the Japanese automaker Honda from 2000 to 2014. The second generation model was officially presented on 13 July 2006. It has been described as a multi-purpose vehicle (MPV) or as an estate car.
__TO ...
*** SOHC iVTEC (Chain driven cam)
*** Compression: 10.5:1
*** Power: at 6300 rpm (Japanese Spec)
*** on Indian variant to use lower octane fuel
*** Torque: at 4,300 rpm
*** Fuel Cut Off: 7150 rpm
*** Redline: 6800 rpm
R18A2
* Found in: ** 2006–2011Honda Civic
The is a series of automobiles manufactured by Honda since 1972. , the Civic is positioned between the Honda Fit/Honda City, City and Honda Accord in Honda's global passenger car line-up.
The first-generation Civic was introduced in July 1972 ...
(European-market FN1 & FK2)
*** Compression: 10.5:1
*** Power: at 6,300 rpm
*** Torque: at 4,300 rpm
*** cruising/economy happens during VTEC under cruising load only.
*** Redline: 6800 rpm
*** Fuel Cutoff : 7150 rpm
R18A6
* Found in: ** 2006–2011 Honda Civic (Brazil) ** Local Fuel optimization (FlexFuel - Ethanol or Gasoline) ** Power: ** SOHC i-VTEC (ECO Version) ** Redline: 6800 rpmR18Z1
* Found in:
**2012–2015 Honda Civic
The is a series of automobiles manufactured by Honda since 1972. , the Civic is positioned between the Honda Fit/Honda City, City and Honda Accord in Honda's global passenger car line-up.
The first-generation Civic was introduced in July 1972 ...
(FB2, FG3)
**2016–2020 Honda Civic
The is a series of automobiles manufactured by Honda since 1972. , the Civic is positioned between the Honda Fit/Honda City, City and Honda Accord in Honda's global passenger car line-up.
The first-generation Civic was introduced in July 1972 ...
(FC6, FK5)
*** SOHC iVTEC (Chain driven cam)
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque: at 4,300 rpm
*** Redline: 6800
*** Fuel cut off: 7100
*** Single valve mode at low RPMs
**iVTEC engages
economy cam profile from 1000 rpm to 3500 rpm, under light engine load. Engine runs on low power cam profile by default.
R18Z4
* Found in: ** 2012–2017Honda Civic
The is a series of automobiles manufactured by Honda since 1972. , the Civic is positioned between the Honda Fit/Honda City, City and Honda Accord in Honda's global passenger car line-up.
The first-generation Civic was introduced in July 1972 ...
(European-market FK2)
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque: at 4,300 rpm
*** Redline: 6800 rpm
*** Fuel cut off : 7100 rpm
*** cruising/economy happens during VTEC under cruising load only.
*** Balancer Shaft on this R18.
R18Z6
* Found in: ** 2013–2017Honda Jade Honda Jade may refer to:
* Honda Jade (motorcycle), a standard motorcycle launched in March 1991
* Honda Jade (automobile), a compact MPV introduced in September 2013
{{disambiguation ...
*** SOHC iVTEC (Chain driven cam)
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque: at 4,300 rpm
R18Z9
* Found in: ** 2016–2022Honda HR-V
The Honda HR-V is a subcompact crossover SUV ( B-segment) manufactured and marketed by Honda over three generations.
The first generation HR-V, based on the Honda Logo, was marketed from 1999 to 2006 in Europe, Japan and select Asia-Pacific ...
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque: at 4,300 rpm
R18ZF
* Found in: ** 2014–2022Honda HR-V
The Honda HR-V is a subcompact crossover SUV ( B-segment) manufactured and marketed by Honda over three generations.
The first generation HR-V, based on the Honda Logo, was marketed from 1999 to 2006 in Europe, Japan and select Asia-Pacific ...
(Thailand and Indonesia)
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque: at 4,300 rpm
R20
The R20 engines all have a bore and stroke of , for an overall displacement of .R20A1
* Found in:
** 2007–2011 Honda CR-V
The Honda CR-V (A variant model is called Honda Breeze in China By GAC-Honda since 2019，The CR-V is still manufactured by Dongfeng Honda) is a compact crossover SUV manufactured by Japanese automaker Honda since 1995. Initial models of the C ...
(RE1, RE2)
** 2008 – Honda Stream
The Honda Stream () is a car manufactured by the Japanese automaker Honda from 2000 to 2014. The second generation model was officially presented on 13 July 2006. It has been described as a multi-purpose vehicle (MPV) or as an estate car.
__TO ...
(RSZ)
** 2013–2015 Acura ILX
The Acura ILX is a compact executive car manufactured and marketed by Honda under the Acura brand, based on the ninth-generation Civic sedan. The ILX replaced the Canadian market exclusive Acura CSX. The gasoline-electric hybrid version was ...
(DE1)
*** Compression: 10.5:1
*** Power: at 6,200 rpm
*** Torque: at 4,200 rpm
*** Redline: 6800 rpm
*** Fuel cut off: 7100 rpm
*** SOHC run by timing chain
**iVTEC engages economy cam profile from 1000 rpm to 3500 rpm, under light engine load. Engine runs on power cam profile by default
R20A2
* Found in: ** 2007–2011Honda CR-V
The Honda CR-V (A variant model is called Honda Breeze in China By GAC-Honda since 2019，The CR-V is still manufactured by Dongfeng Honda) is a compact crossover SUV manufactured by Japanese automaker Honda since 1995. Initial models of the C ...
(RE5)
*** Compression: 10.5:1
*** Power: at 6,200 rpm
*** Torque: at 4,200 rpm
R20A3
* Found in: ** 2008–2012Honda Accord
The , also known as the in Japan and China for certain generations, is a series of automobiles manufactured by Honda since 1976, best known for its four-door sedan variant, which has been one of the best-selling cars in the United States sinc ...
(CP1) (156 hp)
** 2008–2015 Honda Accord
The , also known as the in Japan and China for certain generations, is a series of automobiles manufactured by Honda since 1976, best known for its four-door sedan variant, which has been one of the best-selling cars in the United States sinc ...
(CU1/CN1/CW1) (156 hp)
** 2013–2020 Proton Perdana
The Proton Perdana is a series of four-door mid-size sedan cars produced by Malaysian automobile manufacturer Proton.
First generation (1995–2010)
The first generation Proton Perdana is a badge engineered seventh generation Mitsubishi Et ...
(CP3) (156 hp)
*** Compression: 10.5:1
*** Power: at 6,300 rpm
*** Torque: at 4,300 rpm
R20A5
* Found in: ** 2012–2015Honda Civic
The is a series of automobiles manufactured by Honda since 1972. , the Civic is positioned between the Honda Fit/Honda City, City and Honda Accord in Honda's global passenger car line-up.
The first-generation Civic was introduced in July 1972 ...
(Southeast Asian FB3)
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque: at 4,300 rpm
R20A6
* Found in: ** 2012–2016 –Honda CR-V
The Honda CR-V (A variant model is called Honda Breeze in China By GAC-Honda since 2019，The CR-V is still manufactured by Dongfeng Honda) is a compact crossover SUV manufactured by Japanese automaker Honda since 1995. Initial models of the C ...
(RM1, RM2)
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque: at 4,300 rpm
R20A9
* Found in: ** 2012–2016 –Honda CR-V
The Honda CR-V (A variant model is called Honda Breeze in China By GAC-Honda since 2019，The CR-V is still manufactured by Dongfeng Honda) is a compact crossover SUV manufactured by Japanese automaker Honda since 1995. Initial models of the C ...
(RE5)
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque: at 4,300 rpm
R20Z1
* Found in: ** 2012–2015Honda Civic
The is a series of automobiles manufactured by Honda since 1972. , the Civic is positioned between the Honda Fit/Honda City, City and Honda Accord in Honda's global passenger car line-up.
The first-generation Civic was introduced in July 1972 ...
(FB3)
*** SOHC iVTEC (Chain driven cam)
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque: at 4,300 rpm
R20Z2/R20Z3
* Found in: ** 2013–2017Honda Accord
The , also known as the in Japan and China for certain generations, is a series of automobiles manufactured by Honda since 1976, best known for its four-door sedan variant, which has been one of the best-selling cars in the United States sinc ...
(CR1)
*** Compression: 10.6:1
*** Power: at 6,500 rpm
*** Torque:
LF (R20-based hybrid engine)
LFA1 (i-VTEC + Sport Hybrid i-MMD)
This version includes i-MMD ("Intelligent Multi Mode Drive"). *DOHC 16 valve **Displacement: **Bore x Stroke: **Power (Engine): / 6,200 rpm **Torque (Engine): / 3,500 rpm **Power (Motor): / 5,000-6,000 rpm **Torque (Motor): / 0–2,000 rpm **Power (Combined): / 6,200 rpm ** * Honda Odyssey Hybrid/e:HEV (Japan, RC4) * Honda Stepwgn Hybrid/e:HEV (Japan, RP5) *Honda Accord
The , also known as the in Japan and China for certain generations, is a series of automobiles manufactured by Honda since 1976, best known for its four-door sedan variant, which has been one of the best-selling cars in the United States sinc ...
hybrid (N. America) (2014 - 2022)
* Honda CR-V
The Honda CR-V (A variant model is called Honda Breeze in China By GAC-Honda since 2019，The CR-V is still manufactured by Dongfeng Honda) is a compact crossover SUV manufactured by Japanese automaker Honda since 1995. Initial models of the C ...
hybrid (N. America) (2020 - 2022)
LFB1 (i-VTEC + Sport Hybrid i-MMD)
This version includes i-MMD ("Intelligent Multi Mode Drive"). *DOHC 16 valve **Displacement: **Bore x Stroke: **Power (Engine): / 6,200 rpm **Torque (Engine): / 3,500 rpm **Power (Motor): / 5,000-6,000 rpm **Torque (Motor): / 0–2,000 rpm **Power (Combined): / 6,200 rpm *Honda Accord Hybrid
The , also known as the in Japan and China for certain generations, is a series of automobiles manufactured by Honda since 1976, best known for its four-door sedan variant, which has been one of the best-selling cars in the United States sinc ...
(Thailand, CV3)
* Honda Odyssey e:HEV Absolute (International, RC4)
LFB-13 (i-VTEC + Sport Hybrid i-MMD, e:PHEV)
This version includes i-MMD ("Intelligent Multi Mode Drive"). *DOHC 16 valve **Displacement: **Bore x Stroke: **Power (Engine): / 6,200 rpm **Torque (Engine): / 3,500 rpm **Power (Motor): / 5,000-6,000 rpm **Torque (Motor): / 0–2,000 rpm **Power (Combined): / 6,200 rpm * Honda CR-V Sport Hybrid e+ (China)LFB-H4 (i-VTEC + Sport Hybrid i-MMD)
This version includes i-MMD ("Intelligent Multi Mode Drive"). *DOHC 16 valve **Displacement: **Bore x Stroke: **Power (Engine): / 6,200 rpm **Torque (Engine): / 3,500 rpm **Power (Motor): / 5,000–6,000 rpm **Torque (Motor): / 0–2,000 rpm **Power (Combined): / 6,200 rpm * Honda Accord Hybrid/e:HEV (Japan, CV3) * Honda CR-V Hybrid/e:HEV (Japan, RT5–RT6) * Honda Odyssey Hybrid/e:HEV (Japan, RC4)
LFC-H4
*DOHC 16 valve **Displacement: **Bore x Stroke: **Power (Engine): / 6,000 rpm **Torque (Engine): / 4,500 rpm **Power (Motor): / 5,000–6,000 rpm **Torque (Motor): / 0–2,000 rpm * Honda Civic e:HEV (Japan/Europe, FL4/Thailand, FE4) * Honda ZR-V e:HEV (Australia, RZ4/6) * Honda CR-V e:HEV (Europe/China, RS)See also
*Honda Engines
commonly known as just Honda, is a Japanese multinational conglomerate automotive manufacturer headquartered in Minato, Tokyo, Japan.
Founded in October 1946 by Soichiro Honda, Honda has been the world's largest motorcycle manufacturer si ...
References
External links
Honda Worldwide, Honda Develops New 1.8l i-VTEC Engine
Honda Worldwide, New 1.8l i-VTEC Engine (Video)
Discussion and testing of higher octane fuel with Honda R18 engine
{{Honda automotive engine timeline (2000-present) R 2006 introductions Straight-four engines Gasoline engines by model